Toughening Mechanisms in Mixed-Mode Interfacial Fracture

这项研究将-通过使用一个综合的分析， 计算和实验（ACE）研究-调查 裂纹沿着双材料界面萌生 增加剪切力。潜力的相对重要性 玻璃/环氧树脂界面的增韧机制将是 检查，采用一个单一的样本进行双轴 载荷施加位移的测量， 反作用力和正常的裂纹张开位移。 这项工作有望增加我们对 各种增韧机制与混合- 模式界面裂纹萌生这种理解可以 导致复合材料中界面合理设计或剪裁 材料、微电子器件、涂料和涂料 粘接接头。*//

This research will - by the use of a combined analytical, computational and experimental (ACE) study - investigate the initiation of cracks along bimaterial interfaces with increasing shear. The relative importance of potential mechanisms in the toughening of a glass/epoxy interface will be examined, employing a single specimen subjected to biaxial loads. Measurements of applied displacements, corresponding reactions, and normal crack opening displacements will be made. This work is expected to increase our understanding of the various mechanisms of toughening that are associated with mixed- mode interfacial crack initiation. Such an understanding could lead to a rational design or tailoring of interfaces in composite materials, microelectronic devices, coatings and adhesively bonded joints.***//